ALZOO Mobility Collar is an innovation since is the first collar that helps sooth joint discomfort in Dogs naturally and lasts up to 1 month when used as directed ALZOO Mobility Collar is infused with essentials oils (Wintergreen and Moroccan Rosemary oils) selected for their soothing action on joint discomfort. These essential oils diffuse over the whole body, penetrate through the skin and relieve your dog’s joint discomfort Essential oils are incorporated within the ALZOO Mobility Collar polymer matrix and are released progressively. Thanks to this unique patented sustained release technology, ALZOO Mobility Collar is acting during 30 days when used as directed The ALZOO Mobility Collar is waterproof and maintains it effectiveness when walking in the rain and does not need to be removed when bathing your pet. POWERFUL & SUSTAINABLE - Our high-quality products are laboratory tested, safe for your pets & family when used as directed, cruelty free, and made in the USA using FSC Certified and recyclable packaging. ALZOO makes it easy to be both a good pet parent and a good citizen of the earth. ALZOO Mobility Collar is an innovation since is the first collar that helps sooth joint discomfort in Dogs naturally and lasts up to 1 month. ALZOO Mobility Collar is impregnated with essentials oils (Wintergreen and Moroccan Rosemary oils) selected for their soothing action on joint discomfort. These essential oils diffuse over the whole body, penetrate through the skin and relieve your dog’s joint discomfort. Essential oils are incorporated within the ALZOO Mobility Collar polymer matrix and are released progressively. Thanks to this unique patented sustained release technology, ALZOO Mobility Collar is acting during 30 days. ALZOO Mobility Collar has been tested in dogs suffering from joint discomfort. These tests have confirmed that ALZOO Mobility Collar reduce stiffness and improve mobility. First improvements are visible after only three days